Whip



March 31, 1942. E. J. KARP 2,277,986

WHIP

Filed No v. 28, 1940 Edward I] Kano Patented Mar. 31, 1942 WHIP Edward J. Karp, Cicero, Ill., assignor to G. S. Blakeslee it 00., Cicero, Ill., acorporation of Illinois Application November 28, 1940, Serial No. 367,520

Claims.

This invention relates to whips, or beaters, for whipping cream, beating eggs, and like purposes, and is especially adapted for power operation.

The device includes a head comprising two separable members between which are secured the end portions of open ended wire loops confined against relative circumferential movement while being capable of a certain amount of twisting movement, whereby the stresses to which the loops are subjected, in the use of the device, become mainly torsional stresses and are distributed throughout considerable areas. That avoids sharp bends and localized stresses in the wires of the loops, such as would cause crystallization and resultant breakage thereof.

My invention is directed to a device of the character stated which avoids sharp or localized bending of the wires, can readily be washed or cleaned while in assembled condition, and is capable of being assembled and disassembled with expedition and facility, when necessary or de sired, for cleaning, repairing or like purposes.

Other objects and advantages of the invention will appear from the following detail description taken in conjunction with the accompanying drawing, in which:

Figure 1 is a vertical sectional view of a whip embodying my invention, with certain parts shown in elevation and certain other parts broken away;

Figure 2 is an underneath view of the locking ring forming a part of the head of the device; and

FigureS is a top view of the spider used with the ring of Figure 2 to form the head.

The device includes a head 6 comprising an upper or inner locking ring 8 and a lower spider 9. A whipping structure, indicated generally at I9, comprises a number of open wire loops I I, the ends I2 of which are secured to the head 6. Spider 9 is provided with a central hub I4 into which screws the lower threaded endportion of a shouldered spindle I'I inserted through a central collar 2i of ring 8, with shoulder 26 of the spindle I'I bearing against the upper end of collar ZI, for securing the locking ring and the spider together. The upper end portion of spindle I1 is appropriately formed for attachment, by suitable means, to a power driven shaft.

The ends I2 of the wire loops H are curved as shown at 24 and 25 and, below these bends, have straight portions 26 extending from the body or main portion of theloop. Grooves 21 are formed in the periphery of the locking ring 8,

these grooves being shaped lengthwise to conform generally to the shape of the bends 24 and 25 and the straight portions 26 of the open ends of the loops I I. Locking ring 8 is shaped in cross section to provide an upper outwardly extending shoulderand a depending flange 30 of reduced diameter, as clearly shown in Figure 1, the grooves 2'! being in the outer faces of the shoulder and the flange. The spider 9 comprises an outer ring 29 concentric with and connected to hub I4 by radial arms 32. When looking ring 8 and spider 9 are clamped together by the spindle I'I, ring 29 underlies the shoulder, bears against the bent portions 24 and holds the ends of the loops in the grooves 21. Movement of spider 9 toward locking ring 8 is limited by contact of hub I 4 with collar 2!.

Ring 29, which may be termed a holding ring, functions to retain the end portions of the loops in grooves 21 so as to confine them against objectionable endwise looseness or play, but does not exert a tight gripping or clamping action on the loops, and grooves 2'! receive the end portions of the loops fairly snugly but not tightly. The upper portions of the loops thus have a certain amount of movement in grooves 2'! permitting twisting of the upper portions of the Wires. The ring 29 preferably is circular in cross section, as shown in Figure 1,1or at least that portion of its surface which engages the bent end portions 2 of the loops is rounded. As the loops are flexed outwardly, the bent portions 24 curve over the rounded surface of the ring 29, thereby shifting the points of contact along the wires and increasing the area of flexing, which minimizes localized strains.

The locking ring 8 is provided with a depending annular flange 30 of reduced diameter, as above noted, having spaced notches 3! therein, which snugly receive the arms 32 of the spider 9 and prevent relative circumferential movement between the latter and locking ring 8, in assembling these parts and clamping them to gether.

The wire loops I I arev disposed diametrically of head I6 and increase successively in length outward so that each successive loop may be fitted outside of the next preceding loop, the lower ends of the loops being disposed in a stack, as shown in Figure 1, which facilitates assembling of the device. An advantage of this method of assembling the loops resides in the fact that the various loops for a portion of their length are at different radial distances from the center, w th consequent increased whipping surface. In Figure 1 some of the loops are omitted for clearness of illustration, it being understood that the number of loops correspond to the number of pairs of grooves 21.

In the use of the device, the resistance of the material being whipped to passage of the loops therethrough tends to deflect the wires or strands of the loops laterally. Since the upper end portions of the wires are not gripped or clamped tightly, and have a certain amount of freedom for turning in the grooves 21, this lateral displacement of the wires is converted into a twisting or torsional movement which extends throughout a considerable area, including the straight elements 26 and to some extent the bends or curved portions 24. The movement of the wires is thus mainly torsional and the imposition of sharp or localized bending stresses on the wires is prevented. That is of importance in a device of this character, since in the use of the device the wires tend to be deflected and to vibrate at high speed. Under such conditions any sharp bending of the wires would quickly result in crystallization and breakage thereof. By converting the lateral thrust of the wires into twisting or torsional strains and distributing those strains throughout an appreciable length of the wire, as above explained, I avoid localized bending strains and assure long life of the loops.

The device as a Whole is of open construction and may readily be thoroughly washed and cleaned without necessity for disassembling. The wires extend outward beyond the grooves 21, as shown in Figure l, with ring 29 spaced from locking ring 8. That provides a passage for free flow of a cleansing or washing solution between the holding ring 29 and the locking ring 8, and about the end portions of the wires, permitting thorough washing thereof. When the device is disassembled, all of the parts thereof are readily accessible for cleaning, there being no inaccessible pockets or recesses for lodgement of food particles or other substances. The device may be readily disassembled and reassembled for cleaning, replacement of any of the loops, or for like purposes, in an obvious manner.

It will be understood that the particular construction shown and described in detail herein is not to be considered as limiting, but illustrative, and that all rearrangements of parts and modifications of details as fall within the spirit and scope of the appended claims are to be considered as included in my invention.

I claim:

1. In a device of the class described, an inner locking ring, a plurality of wire loops bent at their end portions to provide curved terminal elements and straight elements extending downward from said terminal elements, said ring being provided in its outer circumferential surface with a plurality of grooves extending generally in the direction of its axis shaped lengthwise conformably to and receiving said curved and straight sections of said bent end portions of said loops, a spider comprising an outer holding ring engaging beneath said curved terminal elements of said loops, means for moving said spider and said locking ring toward each other and securing them together, and means for spacing said holding ring a predetermined distance from said locking ring, said curved end portions of said loops being confined between said holding ring and said locking ring against relative endwise movement and said straight elements of said loops being free from said spider and said locking ring for twisting about their axes.

2. In a device of the class described, an inner locking ring, a plurality of wire loops bent at their end portions to provide curved terminal elements and straight elements extending downward from said terminal elements, said ring being provided in its outer circumferential surface with a plurality of grooves extending generally in the direction of its axis shaped lengthwise conformably to and receiving said curved and straight elements of said bent end portions of said loops, said grooves being of less depth than the thickness of the Wires of said loops, a spider comprising an outer holding ring engaging beneath said curved terminal elements of said loops and spaced outward from said locking ring, means for moving said spider and said locking ring toward each other and securing them together, and means for spacing said holding ring a predetermined distance from said locking ring, said curved end portions of said loops being confined between said holding ring and said locking ring against relative endwise movement and said straight elements of said loops being free from said spider and said locking ring for twisting about their axes.

3. In a device of the class described, an inner locking ring having a central collar and an inwardly offset depending annular flange, a plurality of wire loops bent at their end portions to provide curved terminal elements and straight elements extending downward from said terminal elements, said ring being provided in its outer circumferential surface with a plurality of grooves extending generally in the direction of its axis and downwardly along said flange, said grooves being shaped lengthwise conformably to said curved and straight elements of said bent end portions of said loops and of less depth than the thickness of the wires of said loops, said bent end portions being disposed in said grooves, a spider comprising a central hub and an outer holding ring connected by substantially radial arms to said hub, said holding ring engaging beneath said curved terminal elements of said loops and being spaced outward from said flange, the latter being provided with notches receiving said arms and confining said spider and said locking ring against relative turning movement, and a shouldered spindle passing through said collar and screwing into said hub, the shoulder of said spindle bearing on the upper end of said collar and the lower end of said collar contacting the upper end of said hub for spacing said holding ring a predetermined distance from said annular flange, said curved end portions of said loops being confined between said holding ring and annular flange against relative endwise movement and said straight elements of said loops being free from said spider and said locking ring for twisting about their axes.

4. In a device of the class described, a locking ring, a plurality of wire loops bent at their end portions to provide terminal elements each of which comprises two straight portions and a curved portion therebetween, said ring being provided in its circumferential surface with a plurality of grooves extending generally in the direction of its axis shaped lengthwise conformably to and receiving said bent end portions of said loops, a spider having an outer holding ring engaging beneath said curved portions of said terminal elements, and means for securing said locking ring and spider together.

5. In a device of the character described, a locking ring having a concentric depending flange of reduced diameter and an outwardly extending circumferential shoulder at the upper end of said flange, a plurality of vibratory wire loops bent at their end portions to provide outwardly curved terminal elements and straight elements, said shoulder and flange having in their outer faces grooves extending generally axially of said ring conforming to and receiving said end portions of said loops, a spider secured to said locking ring comprising a holding ring extending about said flange underlying said shoulder and cooperating therewith for confining said curved terminal elements of said loops against endwise movement relative to said locking ring, said straight elements of said loops being free of said holding ring for twisting about their axes in said grooves.

EDWARD J. KARP. 

